Cisco ASR 5000 series Product Overview page 857

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Mobility Management Entity Overview

Gr Interface: This is the interface used by the MME to communicate with the Home Location Register (HLR)

via a eGTP-to-MAP (Mobile Application Part) protocol convertor. This interface is used for network initiated

UE contexts.

For network initiated UE contexts, the MME will communicate with the protocol convertor using eGTP. The

convertor, in turn, will communicate with the HLR using MAP over Signalling System 7 (SS7).

One or more Gr interfaces can be configured per system context.

Note: This interface will be supported in furture release.

refer Features and Functionality - Licensed Enhanced Feature Software section.

MME Software also supports additional interfaces. For more information on additional interfaces,

Network Deployment and Interfaces ▀

Cisco ASR 5000 Series Product Overview ▄